Debian Configuration :: DNS Caching On Desktop System

Feb 1, 2016

I was wondering if a standard Debian 8 system with Gnome desktop does any kind of local dns caching, and if so, what the command is for clearing it. (Assuming I haven't purposely installed any DNS server software.)

I found multiple posts on the Web about unix DNS caching, but with widely different answers across distributions and across time.

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Debian Configuration :: Install A Multi-core System And Configure It To Run Several VMs, One Each For A Firewall, A Caching Proxy Server, A Mail Server, A Web Server?

Jan 25, 2011

I will be relocating to a permanent residence sometime in the next year or two. I've recently begun thinking about the best way to implement a home-based network. It occurred to me that the most elegant solution might be the use of VM technology to eliminate as much hardware and wiring as possible.My thinking is this: Install a multi-core system and configure it to run several VMs, one each for a firewall, a caching proxy server, a mail server, a web server. Additionally, I would like to run 2-4 VMs as remote (RDP)workstations, using diskless workstations to boot the VMs over powerline ethernet.The latest powerline technology (available later this year) will allow multiple devices on a residential circuit operating at near gigabit speed, just like legacy wired networks.

In theory, the above would allow me to consolidate everything but the disklessworkstations on a single server and eliminate all wired (and wireless) connections except the broadband connection to the Internet and the cabling to the nearest power outlets. It appears technically possible, but I'm not sure about the various virtual connections among VMs. In theory, each VM should be able to communicate with the other as if it was on the same network via the server data bus, but what about setting up firewall zones? Any internal I/O bandwidth bottlenecks? Any other potential "gotchas", caveats, issues? (Other than the obvious requirement of having enough CPU and RAM).Any thoughts or observations welcome, especially if they are from real world experience in a VM environment. BTW--in case you're wondering why I'm posting here, it's because I run Debian on all my workstations/servers (running VirtualBox as a VM for Windows XP on one workstation).

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Debian Configuration :: No Longer Allowed To Access The System Configuration

Jul 31, 2011

I am using Squessze and Gnome. When I try to use the gui System>Administration>Network or Users and Groups I get the error The configuration could not be loaded. You are not allowed to access the system configuration.Everything was working before. I read around a bit. In some cases,it was caused by mismatching group and password files after using the gui. I do not know how to check if they are matching. Of course I do not know for sure that is the problem in my case.

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General :: Write-through RAM Disk Or Massive Caching Of File System?

Feb 17, 2010

I have a program that is very heavily hitting the file system, reading and writing randomly to a set of working files. The files total several gigabytes in size, but I can spare the RAM to keep them all mostly in memory. The machines this program runs on are typically Ubuntu Linux boxes.

Is there a way to configure the file system to have a very very large cache, and even to cache writes so they hit the disk later? I understand the issues with power loss or such, and am prepared to accept that. Crashing aside, in normal operation the writes should eventually reach the disk!Or is there a way to create a RAM disk that writes-through to real disk?

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Debian :: Python Script - Debsign Caching Passphrases

Sep 4, 2010

I have a python script that I use to create Debian packages automatically for me. When running this under Ubuntu, it only requires the passphrase to be entered once to sign the changes and dsc files. However when running under Debian it is required to enter it every time. The script is using the debuild command to do the actual package building.

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Debian Configuration :: Cannot Get To Desktop With Kernel 2.6.38

Apr 13, 2011

I'm running testing, so yesterday I upgraded to the new kernel (2.6.38). Unluckly I can't get to the desktop, because the system just hangs (screen goes black then nothing happens). I have found that my problem is the radeon (open-source) driver. When the it tries to get to the desktop it enters an infinite loop, so the system hangs. The bug is better described here: [URL]. However, I don't know how to fix it. I would prefer not to go to the fglrx (proprietary) driver because of tearing issues.

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Debian Multimedia :: Disable Write Caching For Removable Media?

Feb 9, 2010

how to make removable media (e.g. USB sticks) not have any write caching. I want to prevent data loss when they are removed after file copying appears done but before write caches are written. I'm using Gnome on Squeeze.

I've found suggestions of adding the 'sync' mount option to /system/storage/default_options/vfat/mount_options in the Gnome configuration. However this doesn't seem to completely eliminate write buffering, as the drive activity light continues for several seconds after file copying appears done, and unmounting drives produces a dialog box which says to wait whilst data is written to disk.

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Debian Configuration :: Desktop Not Booting To Gnome GUI

Apr 23, 2016

I use the SMXI script to install my graphics drivers (nvidia). It hasn't been booting to desktop for a while though. If I just run a

Code: Select allservice gdm3 start

the desktop starts though. Here's my xorg file.

Code: Select allSection "ServerLayout"
   Identifier     "X.org Configured"
   Screen      0  "Screen0" 0 0
   InputDevice    "Mouse0" "CorePointer"
   InputDevice    "Keyboard0" "CoreKeyboard"

[code]....

I've also tried doing a Xorg -configure to no success. I've also reinstalled the driver many times.

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Debian Configuration :: DHCP And The Desktop Responsiveness?

Aug 15, 2010

I am connected to a network using any interface (eth0, eth1, or wlan0) that if my ip address was given out (dhcp) that my desktop responsiveness gets worse. Specifically the mouse has a sort of "sticky" feeling. I mean by that that I'm moving the physical mouse and the cursor is getting stuck here or there on the screen. It is extremely annoying. Here is my config file:

beethoven:~$ cat /etc/dhcp3/dhclient.conf
# Configuration file for /sbin/dhclient, which is included in Debian's
#dhcp3-client package.
#
# This is a sample configuration file for dhclient. See dhclient.conf's

[code]....

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Debian Configuration :: Minimal Desktop Installs?

Nov 4, 2010

What happened to kde-core? I have two choices of bloat, kde-standard or kde-full. I don't want stuff like konqueror or kmail. I don't want Gwenview, Okular, or Ksnapshot. I don't care for all the media players. I don't need Kaddressbook or Korganizer. Is there a way to do a normal, minimalistic install without this stuff or am I screwed? I want to reinstall on my laptop and the boss' laptop and would prefer not to have the extras,

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Debian Configuration :: How To See Desktop When Switching Windows

Nov 11, 2010

Im using xfce desktop environment in debian. I find that I can not see the desktop when using Ctrl+Alt+Tab to switch window focus. I modified /usr/share/xfce-mcs-plugins/shortcuts/defaults.xml and added Ctrl+Alt+Tab shortcut to trigger a terminal command "wmctrl -k on", then i could see the desktop, but failed to switch window focus. Also, I failed to solve this problem by editing /usr/share/themes/Default/xfwm4/keythemerc Could anybody tell me a solution that you should be able to see the desktop when switching window focus, just like in win7?

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Debian Configuration :: Cannot Remote Desktop To Machine?

Dec 16, 2010

I cannot remote desktop to the Debian machine from anywhere,hether within the same network, or on a different network elsewhere. Also, the personal wiki I set up on it to be viewed via a normal web browser cannot be accessed, either. Both time out when attempting to connect to them. I can still ping the Debian machine when on the same network, though.

This started some time ago when we had a failure occur on our main server.had to powercycle everything in order to restore things back to normal, the Debian machine included. Since that time, this problem started to occur. This is a major thorn in my side in attempting to prepare for our website to move,I've been unable to figure out how to fix it.Originally, I thought it would be something in between the Debian machine and anything else, which would mean something like our firewall box or our hardware switch was the problem. But the tech support people who maintain those for us confirm that there is nothing wrong with them, so now I'm not certain anymore.

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Debian Configuration :: Prevent Xfce Desktop From Any Changes?

Feb 8, 2011

Howto create usb-hdd using live-helper to prevent xfce desktop from any changes? Normal user shouldn't change any icon on the desktop.

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Debian Configuration :: Remote Desktop / Firestarter?

Apr 4, 2011

I have a bit of an odd network setup, shown in the pic here:I am trying to remote desktop from the XP boxes on the side to the one on the bottom, behind a Debian box/firestarter firewall. Is this possible to do without changing my network (IE wiring/topology) setup? If I had my druthers, I would put the router behind the Linux box, before the XP box, but my work laptop does not allow me to connect in that fashion as I can't change the internet settings.

I am certain the setup is correct on both the Windows clients and host, so it has to be something with my firestarter firewall, or something else I'm completely missing. I have the RDP port opened on firestarter, but whenever I try to connect to the XP box, whether it's by computer name or LAN IP address, it is unable to connect. I had thought about setting up a VPN server on my Debian box, and then VPN'ing to it, and then in turn RDC'ing to my Windows machine. Is this possible? If all else fails, I may just plug the Windows box directly into the router and deal with the lower security or get a second wireless router just for my work pc.

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Debian Configuration :: Remote Desktop Attempts Via Xdmcp Or Vnc

Jul 17, 2015

I'm trying to get an laptop running more or less like a headless server, my reasons are not all that serious. Mostly I want to leave the laptop running as a seed box when my main PC is turned off, also want to setup it up as a media top, common place for media files and playback on Tv. So essentially I want to be able to access the remote machine, preferably sharing the same session and persisting while I log out from remote.

What I've done:
setup keys for ssh to connect automatically between machines, so I can login via terminal, access the file system without issues, which is already a great step. enabled remote access on remote machine lightdm manager setup deluge for daemon torrenting, which enables almost seamlessly client to connect remotely (though deluge is not the best with speed)

What I've tried so far:
Connect directly with a new X session
Code: Select allX -query your_server_ip :1

Works alright, creates a new display (:1) which is oddly in F2 tty instead F8 as is expected. Works alright, not much lag, audio is not routed.

But an issue! whenever I decide to log out X will simply shutdown, screen goes black and I can't resume on my regular session on my local machine.Connect X with nested Xephyr session

Code: Select allXephyr -query your_server_ip -screen 1280x1024 :1

This works too and might be the best solution yet, a windows is created and the remote session is nested in your current X session. Visual and performance is ok. Only real issue is that session is not shared, eg, application will not remain running...Connect via VNC

So it seems only solution for shared sessions is VNC.

With the remote desktop apps from KDE (which is the DE for both), I can connect buzz around and etc, but its kinda cumbersome and laggy, password always resets and I usually need to accept on the remote machine.

I've tried setting up lightdm to allow a vncserver at logon, but this is erratic at best, took a long time to get the Xvnc command correct enough for me to login remotely, and even then got a garbled screen and the X session wasn't even the same...

So that's it... Isn't there a way of regular X session sharing in the remote computer? Or a better solution for lightdm vnc invoke?

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Debian Configuration :: Remove Item From Desktop Menus

Feb 7, 2016

I am using Wheezy 7.9, Gnome Classic, gdm3 . I have two menu instances of Master PDF Editor, one instance in the Graphics menu and the other in the Office category. I have tried using Alacarte to remove one of the instances. Alacarte shows that the item has been removed but in fact it still shows up in the menu. The procedure I used was to open Alacarte as root user, delete the item, close Alacarte and re-start the computer.

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Debian Configuration :: Converting From Desktop / GUI To Headless Server

Mar 25, 2016

I set up my Debian box as a HTPC but am moving it to my closet and using it as a NAS now, so I want to make it headless since there won't be a monitor connected to it.What's the cleanest way to nuke the desktop environment? 2nd to reinstalling, that is (although that may not be a bad option since may home directory is in another partition).

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Debian Multimedia :: Remote Desktop Configuration Files

May 14, 2010

If i got gnome i may go to the top-panel: choose system, choose preferences and go to "remote desktop" and make my settings (allow, ask for allow, password, and other stuff). I don't want to be bound to gnome (though i like it, thats not the problem).Which config-files are the ones i am looking for?

I did search the web, but i can't find useful how-to's, explanations, etc.Cause what i find is related to the path i described above (gnome: top-panel, preferences...)Which is the app/tool which pops up and says:"someone wants to access, you want to allow it, yes or no?". The performance of VNC is lousy comopared to NX. Lousy is the friendly version. What might i be doing wrong?i usually do it from a Debian-host to a VirtualBox-guest.I am mainly asking for how-to's/docus and stuff like that. Links. Explanations are welcome too. Of course.

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Debian Configuration :: How To Start Script After User Logs Into Desktop

Jun 22, 2015

So the question is simple what I need is to run file.sh after user logs into desktop LXDE.

Ive been trying whole day tried to put my file.sh into /etc/init.d and ever created symbolic link to /etc/rc4.d etc..

BUT after I log into desktop nothing happens?

I am coming from ubntu there it was easy just add that script into startup applications.

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Debian Configuration :: How To Make Desktop Full Screen In Vmware

Feb 6, 2016

How to make debian desktop full screen in vmware? I am using vmware workstation ...

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Debian Configuration :: Going From Full-screen Console To Gnome Desktop?

Jan 13, 2011

This only started after the recent updates which included a lot of sysv stuff in Squeeze. I'm not talking the Gnome or Xwindows consoles, I'm talking the full-on type you get when you do the CTL-ALT-F2 type of console. before those updates, I had no trouble. Now I can't get back into the gui by pressing CTL-ALT-F7 as usual. All i get is just a black screen. I do have the nvidia proprietary driver installed using DKMS, and I am running the latest (I think) liquorix kernel.

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Configuration :: Best Firewall App For My Debian Squeeze Amd64 Home Desktop?

Feb 27, 2011

I wanted to know which is the best firewall application for my debian squeeze amd64 home desktop. I prefer a simple interface yet powerful enough. After googling I found two options - gufw & firestarter. I am not sure which one to choose between these two.

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Debian Multimedia :: Dual Monitor Configuration For Extended Desktop

Mar 9, 2010

I am trying to set up dual monitors for lenny but nosuccess for the moment.

They were working fine for the same setup on ubuntu.

Using xrandr I get:

I read that virtual screen size could be the maximum part which is of no use in comparison to the current size.

So setting a virtual part in my xorg does not help much. If the above is right.

I have:

How to get the external monitor work in the extened screen mode.

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Debian Multimedia :: LXDE Desktop And Taskbar Icon Configuration?

Aug 1, 2011

The first issue is adding launch icons to the task bar. I can add launchers, but cannot figure out how to link them to applications. It is only half a problem, because putting links on the desktop is easy, but I prefer having launchers on the task bar so the desktop is not cluttered.The big problem is placement of desktop icons. I like to put icons on the right side of the screen, and more importantly, I like to group related icons. For example, if I had a folder or document for Linux and another for Debian, I want them grouped together. I also like arranging by category: folders in one column, documents and images in another and launchers (if any) in a third. However, if there is way to enable desktop icons to be moved, I cannot figure it out. Icons are fixed on the left side of the screen with folders first in alphabetical order, then documents/images in alphabetical or numerical order, and launch icons last.My guess is icons can be moved, but I am not computer literate enough to figure it out. It does not make sense that the task bar can be placed on the top, bottom, left or right, but desktop icons cannot be moved. I have tried every preference setting, but there are no relevant options.Am I over-looking something that is not obvious or is it a strange deficiency with LXDE?

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Debian Configuration :: The 'freezing' System Of Debian

Nov 15, 2010

How does the 'testing' version of Debian stabilize? I mean, the updates from upstream are very frequent, so if the Debian maintainers upgrade a package till the very end (for e.g if they just upgrade to 2.6.36), when will they get time to test it (so as to freeze it)?

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Debian Configuration :: Run Remote Desktop Sessions - FreeNX Connection Timeout

Apr 19, 2010

I have a Debian VPS running Lenny and I'm trying to setup a way to run remote desktop sessions from it. I went with FreeNX, NX client for windows from nomachine, XDM and xfce4. All seems to have installed well, but I can't start an NX session on my box. I can connect to the server and authenticate, but the client hangs on "Downloading the session information," eventually timing out. The log output is below - I'm not even seeing an error message. Any ideas?

[Code]...

The only thing I noticed during install, which was about 400 packages since this was a barebones VPS, was that I should consider recompiling the kernel with CONFIG_SOFTWARE_SUSPEND=y. I don't know if this has any impact on session information, however, since this is a new session, not one I'm trying to resume.

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Debian Configuration :: Configure Vino Remote Desktop To Start At Boot?

Jan 29, 2011

Kernel: Linux 2.6.26-2-686 (i686)
Compiled: #1 SMP Thu Nov 25 01:53:57 UTC 2010
C Library: GNU C Library version 2.7 (stable)
Distribution: Debian GNU/Linux 5.0.8
Desktop Environment: GNOME 2.20

Gnome comes with Vino Remote Desktop as part of it's package. I want Vino to run at boot so that I can login remotely.I am using VNC-4.1.3 for remote viewing. However, I can only view remotely once I have logged-in locally

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Debian Configuration :: How To Remove VM From System

Jan 10, 2016

I would like to remove a specific domU (test01--pv--guest) from my machine. I am not sure how far/to what extent to remove files. Here are the files and properties it seems I should remove:

lrwxrwxrwx 1 root root 10 Jan 9 11:05 /dev/disk/by-id/dm-name-xenvg-test01--pv--guest--disk -> ../../dm-3
lrwxrwxrwx 1 root root 10 Jan 9 01:03 /dev/disk/by-id/dm-name-xenvg-test01--pv--guest--swap -> ../../dm-2
lrwxrwxrwx 1 root root 7 Jan 9 11:05 /dev/mapper/xenvg-test01--pv--guest--disk -> ../dm-3
lrwxrwxrwx 1 root root 7 Jan 9 01:03 /dev/mapper/xenvg-test01--pv--guest--swap -> ../dm-2
lrwxrwxrwx 1 root root 7 Jan 9 11:05 /dev/xenvg/test01-pv-guest-disk -> ../dm-3

The above link to dm-2 and dm-3.

brw-rw---- 1 root disk 254, 0 Jan 9 01:03 /dev/dm-0
brw-rw---- 1 root disk 254, 1 Jan 9 01:03 /dev/dm-1
brw-rw---- 1 root disk 254, 2 Jan 9 01:03 /dev/dm-2
brw-rw---- 1 root disk 254, 3 Jan 9 11:05 /dev/dm-3
brw-rw---- 1 root disk 254, 4 Jan 9 01:03 /dev/dm-4
brw-rw---- 1 root disk 254, 5 Jan 9 01:03 /dev/dm-5
brw-rw---- 1 root disk 254, 6 Jan 9 01:03 /dev/dm-6
brw-rw---- 1 root disk 254, 7 Jan 9 01:03 /dev/dm-7

Will they be deleted automatically or should/can I remove them? How do I check the need for the other dm-? files? As indicated below, it seems like some may be duplicates.

I also found this set in /etc/lvm/archive/:

-rw------- 1 root root 2909 Oct 17 00:41 Relaise-vg_00000-1453251236.vg
-rw------- 1 root root 2929 Oct 24 22:08 Relaise-vg_00001-1530642081.vg
-rw------- 1 root root 2924 Oct 25 19:33 Relaise-vg_00002-328450675.vg
-rw------- 1 root root 2901 Oct 26 19:53 Relaise-vg_00003-1555350964.vg
-rw------- 1 root root 2902 Oct 26 19:53 Relaise-vg_00004-1044927704.vg

[Code] ....

Some of these seem like duplicates. This may be due to multiple attempts to build the volumes. Is there a way to determine if all of the are useful?

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Debian Configuration :: Installing Anything New On System

Jun 11, 2010

I came across one strange problem. When I try to install a new package on my system, I get this error, connected with libgnutls26:

[Cpde]...

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Debian Configuration :: System Hang On X Logout

Jun 23, 2015

If I shutdown from X the system hangs and I have to yank out the power cord. Same on logout.

ctrl+alt+f1 hangs for a few minutes and then starts a terminal; which does not respond to the keyboard.

There are no tty.conf files in /etc/init .

But inittab looks normal to me and includes tty (1-6)

Executing init 6 from a terminal in X will reboot the system

I was thinking this might be a dbus issue, but I am not sure. I also understand some recent issues exist with SysRq sequences. May be a video card issue,,,

Other than normal package upgrades the only changes were a recent change from a VGA to HDMI cable. I can't see why that would matter

Linux Lugh 3.2.0-4-amd64 #1 SMP Debian 3.2.68-1+deb7u2 x86_64 GNU/Linux

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